Thankfully, most northern trees aren’t dead in winter. The tree is found most abundantly in Switzerland, Austria, Italy, and Germany. 2008). Look out for: leaf veins which are hairy on the underside. Closer examination of our native Hoosier American Sycamore will likely reveal more trees that more resistant to the fungus. Sycamore anthracnose is one of the most common diseases that commonly affect California sycamore trees. Other management options and Smart Gardening practices include collecting and disposing of diseased leaves at the end of the season; pruning out diseased and damaged branches, especially with smaller trees (remember to sanitize pruning tools between cuts); pruning for good air flow to reduce the leaf wetness period; watering your tree during droughty periods; and getting a soil test to determine whether the soil is lacking any nutrients needed for tree growth. In the United States, the sycamore tree is cold-hardy in USDA gardening zones 4 through 9. The good news is healthy trees generally recover and put out a second flush of leaves once the weather is warmer and drier. The leaves are drying out and already dropping. If you don’t spot buds or the buds are shriveled or black, that could indicate it's a problem. Usually by mid-May the leaves are near full or full size. Many American sycamores have not leafed out well during this cold, wet spring, but they should recover with warmer weather. Trees ultimately leaf out when they know it’s safe to do so. Below learn when trees will typically leaf out and bloom in your area. Tree Service Experts Since 1880. Where to find: this non-native tree is often found as a street tree and is widely planted in parks and gardens. Extended periods of cold spring weather slow growth of the sycamore tree. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. Canker stain, verticillium wilt, powdery mildew, leaf scorch and sycamore lace bugs can be serious problems. Facts About Sycamore Trees. As long as tree buds are green on the inside, they’re alive and well—just waiting for their time to sprout. Find out when trees typically bloom in each region. ... requiring more room to spread out. And remember, if there’s unusual weather in your area, like a mild or severe winter, trees may bloom sooner or later than this. Mature leaves are naturally more resistant. At Davey, we use the Davey Nature Clock, a patent-pending software application that predicts bloom time and peak pest emergence. There is a somewhat ragged edge to the leaf, lots of ‘rounded’ teeth. While the Davey Nature Clock’s predictions are specific for each year, species, and location, we can use it to generally predict when trees bloom. Sycamore trees are not high on the edible list, unless you’re in need. Temperature and rainfall significantly impact the overall severity of this disease. London planetrees displaying a fuller canopy than a nearby American sycamore severely affected by sycamore anthracnose. Anthracnose is a common fungal disease of sycamore, ash, maple, oak, and other trees. The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707. If you are considering planting a new sycamore tree, you may want to opt instead for less susceptible London planetree (Platanus x acerifolia) cultivars, such as ‘Bloodgood,’ ‘Columbia,’ ‘Liberty,’ Exclamation! Genus Details Sycamores are large trees with grayish scaling bark and deciduous, alternate, palmately-shaped leaves (with parts diverging from a common base, as the fingers of a hand), with hairs on the underside. These native to North America trees are easy to recognize, thanks to the bark, which has a camouflage-type appearance. While anthracnose may cause extensive defoliation, it does not cause serious harm to healthy, well-established trees. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. These massive, fast-growing trees are loved for their shade and their resistance to splitting. 15 Comments. View our. To have a digest of information delivered straight to your email inbox, visit Though they grow big and showy, landscapers don’t use them because they can have a … For example, a resident of Livingston County, Michigan, submitted a question to the Michigan State University Extension Ask an Expert group, noting that their 200-year-old sycamore tree looked sick and was “very light on leaf foliage.”. The stately sycamore also goes by the monikers of the button-ball, button-wood, or the American plane tree. … All of this results in the very bare-looking sycamore trees that Michigan residents have noticed. Sycamore Anthracnose. These trees, especially fruit trees, require a period of dormancy brought about by colder temperatures in order to thrive. Sycamore anthracnose is a fungal disease that can cause leaf drop, twig dieback, cankers and the sudden death of more than 90% of a tree’s new shoot growth. Question: Our catalpa has no leaves on its branches except for one at the bottom. Thereafter, the tree grows at a steady pace until it is full-grown. You can also identify a sycamore tree by looking at its … Davey uses cookies to make your experience a great one by providing us analytics so we can offer you the most relevant content. The sycamore is a grand, stately shade tree for a larger site. Its heavy leaf fall can mean that the ground flora underneath the tree is limited. Arizona Sycamore Tree, platanus wrightii native to canyons, streams and rivers in south and central Arizona; English Sycamore Tree, London plane Tree, popular landscaping variety; Sycamore Maple Tree, dark green, thick, leatherlike leaves that grow 3 to 6 inches wide; Common Uses for Sycamore Trees. Deciduous trees are trees that lose their leaves at some point during the winter. With age it develops a spreading, irregular, oval or rounded crown of heavy, large-diameter branches. The leaves are small, and they grew out of the bark, not buds. Yearly repeated infections could weaken trees, cause “witches brooms” (twiggy clusters at a branch tip) or significant branch dieback, but again, otherwise healthy trees will not be too adversely affected. Platanus occidentalis, also known as American sycamore, American planetree, western plane, occidental plane, buttonwood, and water beech, is a species of Platanus native to the eastern and central United States, the mountains of northeastern Mexico, extreme southern Ontario, and possibly extreme southern Quebec. Look for disease symptoms on a tree that’s not leafing out. Twigs are pink-brown and hairless. They are hardy between USDA Plant Hardiness Zones 4 and 9. Step 2 Leaf drop can be messy and chemicals released in leaves can prevent growth of the underlying turf. You’ll find that there are quite a few diseases of sycamore trees. If your tree looks healthy (which you’ll find out how to determine below), just give it a little time! These dry, hairy fruits hang in groups of 2-7 and encase small seeds. These broadleaf trees can grow to 35m and live for 400 years. Question: When do Catalpa trees typically leaf out in zone 9b? Spring and tree disease go hand in hand, and anthracnose is a disease that can hinder leaf growth on trees like ash, maple, oak or … When I looked at some of the leaves, they Simple but large leaves. Sycamore trees grow quickly to heights of 100 feet or more. They’re dormant – very much alive but relatively inactive. May 5, 2002. What Should I Do? It’s just too cold. S ycamore is fast growing and regarded by some as a ‘weed’. They often persist on the tree through the winter, eventually breaking apart into fine fibers which readily blow about in the wind. Are Bumps on Branches and Trunks (Burls) Bad for Trees? Read on to find out how to grow a sycamore tree. Diseases of Sycamore Trees. The bark is dark pink-grey, and smooth when young, but becomes cracked and develops small plates with age. Sinclair and Lyon, Diseases of Trees and Shrubs, 2nd edition Cornell University Press, 2005. The Ohio Department of Natural Resources calls the sycamore the most “massive” of all the trees native to the eastern part of the United States, with some having trunk diameters of more than 10 feet. Sycamore Tree Characteristics. Platanus occidentalis, also known as American sycamore, American planetree, western plane, occidental plane, buttonwood, and water beech, is a species of Platanus native to the eastern and central United States, the mountains of northeastern Mexico, extreme southern Ontario, and possibly extreme southern Quebec. This tree often has white, exfoliated, and splotchy bark and prefers rich, moist soils. While there’s no set date for all trees to break bud, we can use clues to predict when trees typically leaf out. A tree not blooming in early spring isn’t an automatic red flag. Show your Spartan pride and give the gift of delicious MSU Dairy Store cheese this holiday season! The sycamore tree is prone to sooty bark (cryptostroma corticale). Question: I have two big sycamore trees and they look terrible this year. Michiganders in the lower part of the state have noticed their sycamores looking rather sickly this 2019 growing season. To contact an expert in your area, visit, or call 888-MSUE4MI (888-678-3464). Maple, Sycamore, yellow-poplar, and sweetgum trees are known for their lobed leaves, which turn bright colors in the fall. A cold, wet spring has caused many American sycamore trees (Platanus occidentalis) in the Michigan area to exhibit severe symptoms of a fungal disease called sycamore anthracnose. two weeks of abnormally warm weather in March 2007 triggered early leaf out all across eastern and central north america. For more information, visit The pathogen starts reproducing from these sources to infect new leaves and shoots. Leaf. The exact nature of the illness caused will vary based on which fungi is attacking a given tree, but most produce relatively similar symptoms: Numerous yellow to brown spots appearing on the leaves. The most dangerous of the diseases of sycamore trees is anthracnose, also called leaf and twig blight.It can kill American sycamore, although it does only minor damage to other varieties. Your arborist is here to help. It has an aggressive root system. It is tolerant of ‘sea spray’ and may be planted near the coast. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. There are two ways trees know when trees wake up for spring. The leaves on a sycamore tree have 3-5 lobes and toothed edges. If you see no signs of leaf growth by mid-April, your tree may be dead. Sycamore tree care is easy. So in late August and early September in the northern hemisphere, when precipitation rates drop, that can function as a cue and have the tree shut down and enter that dormant state. Sycamore trees are abundant in the eastern half of the United States, and their hybrid relatives are popular across Europe. I can handle that. The leaf buds are fat and green, (borne in opposite pairs) and the flower buds are pink, opening to tassels of hanging flowers in May. To identify a sycamore tree, look for a tree with a wide trunk and a large, dome-shaped canopy. However, this tree can be pruned very hard in spring to keep it about 25 feet. Healthy, mature trees will simply send out a new set of leaves, and with warmer weather, the fungus becomes inactive and by summer the tree will fully leaf out as if nothing had happened. A sycamore is deciduous, losing all its leaves in winter, and can form large surface roots. This article was published by Michigan State University Extension. Sycamore pollen is allergenic, but considered only of moderate importance on skin tests. ©2020 The Davey Tree Expert Company. June 28, 2019. If you’re in the lower latitudes of Canada right now, take a look outside. All Rights Reserved. Many American sycamores have not leafed out well during this cold, wet spring, but they should recover with warmer weather. However, don’t panic, even in seasons with more severe infections, when the weather gets warmer and drier as the season progresses, anthracnose disease should abate, and the sycamores should put out a second flush of leaves by the end of the season. Answer: My estimate, for your zone, is that your catalpa should leaf out around the end of April to mid-May, possibly sooner. It occurs typically in spring foliation during a period of persistent, cool, wet weather where the foliage is often wet for a long period of time & temperatures fail to rise above the 50s for … Because of this, it’s not uncommon for these trees to wait until late spring or even early summer to grow leaves. Diseases of Sycamore Trees. Look for sores, also called cankers, that encircle large branches or are at the base of leaf clusters. Both flowers and leaves appear on sycamores as early as March. Fortunately, the sycamore trees will continue to produce additional leaves and shoots through early summer. Do Peach Trees Lose Their Leaves in the Fall? Seed appearance: Norway maple seeds grow in pairs on a wider angle than sycamore, but not as wide as field maple. Not to mention the previous owner obviously didn’t do his research and planted this thing about 7 feet from the back yard patio. One primary “management option” for sycamore anthracnose is to wait – the tree will likely recover with another flush of leaves. Utilizing weather data from over 400 locations across the nation, the Nature Clock helps to achieve more precise timing of pest management applications. However, it rapidly dominates a wood excludes other trees, reducing biodiversity. If your tree’s not leafing out when you expected, give it some time. Leaf Out Dates in the Northeast: Northeastern trees are adapted to take extra caution when it comes to spring bloom since it can be devastating for leaves to be shocked by a sudden freeze. There are three basic types of sycamore: North American Sycamore, British sycamore and Middle Eastern sycamore. They are bigger than other helicopter seeds at approximately 10–15mm wide with 30–50mm long wings. The California sycamore is large, tall tree with a fast growth rate. In most northeastern trees, the buds that burst open in spring were formed the previous summer. As many lichens develop on Sycamore as on Oak. How Do Trees Know When to Leaf Out in the Spring?